DAVID M BUTLER MD
NPI 1699861518
Internal Medicine in Casper, WY
About David M Butler Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID M BUTLER MD (NPI 1699861518) is an individual internal medicine provider in Casper, Wyoming, licensed in California (A90360) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with St Luke's Cornwall Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David M Butler Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show David Butler reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Buffalo, NY 14220
- Reassigned Medicare billing, New York enrollment
- 499 clinicians in this Medicare group
Newburgh, NY 12550
- Reassigned Medicare billing, New York enrollment
- 110 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Luke's Cornwall Hospital
Acute Care Hospitals · Newburgh, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 82601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CASPER, WY 82601
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Butler's NPI number?
The NPI number for David Butler is 1699861518. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is David Butler located?
David Butler practices at 1233 E 2nd St, Casper, WY 82601. The listed phone number is (800) 822-7201.
What is David Butler's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is David Butler enrolled in Medicare?
Yes. David Butler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for David Butler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Butler reassigns Medicare benefits to 5 organizations: Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA), Inpatient Specialists Of California, PC (San Bernardino, CA), Mercy Hospital Of Buffalo (Buffalo, NY), Critical Care Physician Of New York PC (Newburgh, NY) and North Shore-Lij Medical PC (Great Neck, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Butler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Butler accept?
Health plans from CareSource list David Butler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is David Butler affiliated with any hospitals?
According to CMS data, David Butler is affiliated with St Luke's Cornwall Hospital.
When was this NPI record last updated?
The NPPES record for David Butler was last updated on September 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# David M Butler, MD · NPI 1699861518
Internal Medicine physician in Casper, Wyoming. Individual provider, active in the CMS NPPES registry since October 5, 2006.
## Identity
- **NPI:** 1699861518 (Entity type: Individual)
- **Enumerated:** October 5, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A90360 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1233 E 2ND ST, Casper, WY 82601-2988
- **Phone:** (800) 822-7201 · **Fax:** (888) 464-8483
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); Mercy Hospital Of Buffalo (NPI 1144262908, Buffalo, NY); Critical Care Physician Of New York PC (NPI 1316293954, Newburgh, NY); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** September 30, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1699861518) · Data from the CMS NPPES public registry.